How to transfer SMSes from old W580i to new Xperia Ray

I am not able to found a way to transfer old SMS messages on my wife's old SE W580i phone to her new SE Xperia Ray. I was able to archive them from old phone to PC using PC Companion, but there is no such option to copy these archived ones to the Xperia phone... or at least I didn't find it. I am new to Android phones so any guidance is welcome, if anyone can help